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1 package org.apache.archiva.repository.maven.metadata.storage;
2
3 /*
4  * Licensed to the Apache Software Foundation (ASF) under one
5  * or more contributor license agreements.  See the NOTICE file
6  * distributed with this work for additional information
7  * regarding copyright ownership.  The ASF licenses this file
8  * to you under the Apache License, Version 2.0 (the
9  * "License"); you may not use this file except in compliance
10  * with the License.  You may obtain a copy of the License at
11  *
12  * http://www.apache.org/licenses/LICENSE-2.0
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  */
20
21 import org.apache.archiva.checksum.ChecksumAlgorithm;
22 import org.apache.archiva.checksum.ChecksummedFile;
23 import org.apache.archiva.common.Try;
24 import org.apache.archiva.common.utils.VersionUtil;
25 import org.apache.archiva.filter.Filter;
26 import org.apache.archiva.metadata.maven.MavenMetadataReader;
27 import org.apache.archiva.metadata.model.ArtifactMetadata;
28 import org.apache.archiva.metadata.model.ProjectMetadata;
29 import org.apache.archiva.metadata.model.ProjectVersionMetadata;
30 import org.apache.archiva.metadata.model.facets.RepositoryProblemFacet;
31 import org.apache.archiva.metadata.repository.storage.*;
32 import org.apache.archiva.model.ArchivaRepositoryMetadata;
33 import org.apache.archiva.model.ArtifactReference;
34 import org.apache.archiva.model.SnapshotVersion;
35 import org.apache.archiva.policies.ProxyDownloadException;
36 import org.apache.archiva.proxy.ProxyRegistry;
37 import org.apache.archiva.proxy.maven.WagonFactory;
38 import org.apache.archiva.proxy.model.NetworkProxy;
39 import org.apache.archiva.proxy.model.ProxyConnector;
40 import org.apache.archiva.proxy.model.RepositoryProxyHandler;
41 import org.apache.archiva.repository.*;
42 import org.apache.archiva.repository.content.PathParser;
43 import org.apache.archiva.repository.maven.MavenSystemManager;
44 import org.apache.archiva.repository.metadata.RepositoryMetadataException;
45 import org.apache.archiva.repository.storage.StorageAsset;
46 import org.apache.commons.lang3.ArrayUtils;
47 import org.apache.commons.lang3.StringUtils;
48 import org.apache.maven.model.*;
49 import org.apache.maven.model.building.*;
50 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
51 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
52 import org.slf4j.Logger;
53 import org.slf4j.LoggerFactory;
54 import org.springframework.context.ApplicationContext;
55 import org.springframework.stereotype.Service;
56
57 import javax.annotation.PostConstruct;
58 import javax.inject.Inject;
59 import javax.inject.Named;
60 import java.io.FileNotFoundException;
61 import java.io.IOException;
62 import java.io.Reader;
63 import java.nio.channels.Channels;
64 import java.nio.charset.Charset;
65 import java.nio.file.NoSuchFileException;
66 import java.time.ZoneId;
67 import java.time.ZonedDateTime;
68 import java.util.*;
69 import java.util.function.Predicate;
70 import java.util.stream.Collectors;
71
72 // import java.io.FileNotFoundException;
73
74 /**
75  * <p>
76  * Maven 2 repository format storage implementation. This class currently takes parameters to indicate the repository to
77  * deal with rather than being instantiated per-repository.
78  * FIXME: instantiate one per repository and allocate permanently from a factory (which can be obtained within the session).
79  * </p>
80  * <p>
81  * The session is passed in as an argument to obtain any necessary resources, rather than the class being instantiated
82  * within the session in the context of a single managed repository's resolution needs.
83  * </p>
84  */
85 @Service("repositoryStorage#maven2")
86 public class Maven2RepositoryStorage
87         implements RepositoryStorage {
88
89     private static final Logger log = LoggerFactory.getLogger(Maven2RepositoryStorage.class);
90
91     private ModelBuilder builder;
92
93     @Inject
94     RepositoryRegistry repositoryRegistry;
95
96     @Inject
97     @Named( "metadataReader#maven" )
98     MavenMetadataReader metadataReader;
99
100     @Inject
101     @Named("repositoryPathTranslator#maven2")
102     private RepositoryPathTranslator pathTranslator;
103
104     @Inject
105     private WagonFactory wagonFactory;
106
107     @Inject
108     private ApplicationContext applicationContext;
109
110     @Inject
111     @Named("pathParser#default")
112     private PathParser pathParser;
113
114     @Inject
115     private ProxyRegistry proxyRegistry;
116
117     @Inject
118     private MavenSystemManager mavenSystemManager;
119
120     private static final String METADATA_FILENAME_START = "maven-metadata";
121
122     private static final String METADATA_FILENAME = METADATA_FILENAME_START + ".xml";
123
124     // This array must be lexically sorted
125     private static final String[] IGNORED_FILES = {METADATA_FILENAME, "resolver-status.properties"};
126
127     private static final MavenXpp3Reader MAVEN_XPP_3_READER = new MavenXpp3Reader();
128
129
130     @PostConstruct
131     public void initialize() {
132         builder = new DefaultModelBuilderFactory().newInstance();
133
134     }
135
136     @Override
137     public ProjectMetadata readProjectMetadata(String repoId, String namespace, String projectId) {
138         // TODO: could natively implement the "shared model" concept from the browse action to avoid needing it there?
139         return null;
140     }
141
142     @Override
143     public ProjectVersionMetadata readProjectVersionMetadata(ReadMetadataRequest readMetadataRequest)
144             throws RepositoryStorageMetadataNotFoundException, RepositoryStorageMetadataInvalidException,
145             RepositoryStorageRuntimeException {
146
147         ManagedRepository managedRepository = repositoryRegistry.getManagedRepository(readMetadataRequest.getRepositoryId());
148         boolean isReleases = managedRepository.getActiveReleaseSchemes().contains(ReleaseScheme.RELEASE);
149         boolean isSnapshots = managedRepository.getActiveReleaseSchemes().contains(ReleaseScheme.SNAPSHOT);
150         String artifactVersion = readMetadataRequest.getProjectVersion();
151         // olamy: in case of browsing via the ui we can mix repos (parent of a SNAPSHOT can come from release repo)
152         if (!readMetadataRequest.isBrowsingRequest()) {
153             if (VersionUtil.isSnapshot(artifactVersion)) {
154                 // skygo trying to improve speed by honoring managed configuration MRM-1658
155                 if (isReleases && !isSnapshots) {
156                     throw new RepositoryStorageRuntimeException("lookforsnaponreleaseonly",
157                             "managed repo is configured for release only");
158                 }
159             } else {
160                 if (!isReleases && isSnapshots) {
161                     throw new RepositoryStorageRuntimeException("lookforsreleaseonsneponly",
162                             "managed repo is configured for snapshot only");
163                 }
164             }
165         }
166         StorageAsset basedir = managedRepository.getAsset("");
167         if (VersionUtil.isSnapshot(artifactVersion)) {
168             StorageAsset metadataFile = pathTranslator.toFile(basedir, readMetadataRequest.getNamespace(),
169                     readMetadataRequest.getProjectId(), artifactVersion,
170                     METADATA_FILENAME);
171             try {
172                 ArchivaRepositoryMetadata metadata = metadataReader.read(metadataFile);
173
174                 // re-adjust to timestamp if present, otherwise retain the original -SNAPSHOT filename
175                 SnapshotVersion snapshotVersion = metadata.getSnapshotVersion();
176                 if (snapshotVersion != null) {
177                     artifactVersion =
178                             artifactVersion.substring(0, artifactVersion.length() - 8); // remove SNAPSHOT from end
179                     artifactVersion =
180                             artifactVersion + snapshotVersion.getTimestamp() + "-" + snapshotVersion.getBuildNumber();
181                 }
182             } catch ( RepositoryMetadataException e) {
183                 // unable to parse metadata - LOGGER it, and continue with the version as the original SNAPSHOT version
184                 log.warn("Invalid metadata: {} - {}", metadataFile, e.getMessage());
185             }
186         }
187
188         // TODO: won't work well with some other layouts, might need to convert artifact parts to ID by path translator
189         String id = readMetadataRequest.getProjectId() + "-" + artifactVersion + ".pom";
190         StorageAsset file =
191                 pathTranslator.toFile(basedir, readMetadataRequest.getNamespace(), readMetadataRequest.getProjectId(),
192                         readMetadataRequest.getProjectVersion(), id);
193
194         if (!file.exists()) {
195             // metadata could not be resolved
196             throw new RepositoryStorageMetadataNotFoundException(
197                     "The artifact's POM file '" + file.getPath() + "' was missing");
198         }
199
200         // TODO: this is a workaround until we can properly resolve using proxies as well - this doesn't cache
201         //       anything locally!
202         List<RemoteRepository> remoteRepositories = new ArrayList<>();
203         Map<String, NetworkProxy> networkProxies = new HashMap<>();
204
205         Map<String, List<ProxyConnector>> proxyConnectorsMap = proxyRegistry.getProxyConnectorAsMap();
206         List<ProxyConnector> proxyConnectors = proxyConnectorsMap.get(readMetadataRequest.getRepositoryId());
207         if (proxyConnectors != null) {
208             for (ProxyConnector proxyConnector : proxyConnectors) {
209                 RemoteRepository remoteRepoConfig =
210                         repositoryRegistry.getRemoteRepository(proxyConnector.getTargetRepository().getId());
211
212                 if (remoteRepoConfig != null) {
213                     remoteRepositories.add(remoteRepoConfig);
214
215                     NetworkProxy networkProxyConfig =
216                             proxyRegistry.getNetworkProxy(proxyConnector.getProxyId());
217
218                     if (networkProxyConfig != null) {
219                         // key/value: remote repo ID/proxy info
220                         networkProxies.put(proxyConnector.getTargetRepository().getId(), networkProxyConfig);
221                     }
222                 }
223             }
224         }
225
226         // That's a browsing request so we can a mix of SNAPSHOT and release artifacts (especially with snapshots which
227         // can have released parent pom
228         if (readMetadataRequest.isBrowsingRequest()) {
229             remoteRepositories.addAll(repositoryRegistry.getRemoteRepositories());
230         }
231
232         ModelBuildingRequest req =
233                 new DefaultModelBuildingRequest().setProcessPlugins(false).setPomFile(file.getFilePath().toFile()).setTwoPhaseBuilding(
234                         false).setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);
235
236         //MRM-1607. olamy this will resolve jdk profiles on the current running archiva jvm
237         req.setSystemProperties(System.getProperties());
238
239         // MRM-1411
240         req.setModelResolver(
241                 new RepositoryModelResolver(managedRepository, pathTranslator, wagonFactory, remoteRepositories,
242                         networkProxies, managedRepository, mavenSystemManager, metadataReader));
243
244         Model model;
245         try {
246             model = builder.build(req).getEffectiveModel();
247         } catch (ModelBuildingException e) {
248             String msg = "The artifact's POM file '" + file + "' was invalid: " + e.getMessage();
249
250             List<ModelProblem> modelProblems = e.getProblems();
251             for (ModelProblem problem : modelProblems) {
252                 // MRM-1411, related to MRM-1335
253                 // this means that the problem was that the parent wasn't resolved!
254                 // olamy really hackhish but fail with java profile so use error message
255                 // || ( StringUtils.startsWith( problem.getMessage(), "Failed to determine Java version for profile" ) )
256                 // but setTwoPhaseBuilding(true) fix that
257                 if (((problem.getException() instanceof FileNotFoundException
258                         || problem.getException() instanceof NoSuchFileException
259                 ) && e.getModelId() != null &&
260                         !e.getModelId().equals(problem.getModelId()))) {
261                     log.warn("The artifact's parent POM file '{}' cannot be resolved. "
262                             + "Using defaults for project version metadata..", file);
263
264                     ProjectVersionMetadata metadata = new ProjectVersionMetadata();
265                     metadata.setId(readMetadataRequest.getProjectVersion());
266
267                     MavenProjectFacet facet = new MavenProjectFacet();
268                     facet.setGroupId(readMetadataRequest.getNamespace());
269                     facet.setArtifactId(readMetadataRequest.getProjectId());
270                     facet.setPackaging("jar");
271                     metadata.addFacet(facet);
272
273                     String errMsg =
274                             "Error in resolving artifact's parent POM file. " + (problem.getException() == null
275                                     ? problem.getMessage()
276                                     : problem.getException().getMessage());
277                     RepositoryProblemFacet repoProblemFacet = new RepositoryProblemFacet();
278                     repoProblemFacet.setRepositoryId(readMetadataRequest.getRepositoryId());
279                     repoProblemFacet.setId(readMetadataRequest.getRepositoryId());
280                     repoProblemFacet.setMessage(errMsg);
281                     repoProblemFacet.setProblem(errMsg);
282                     repoProblemFacet.setProject(readMetadataRequest.getProjectId());
283                     repoProblemFacet.setVersion(readMetadataRequest.getProjectVersion());
284                     repoProblemFacet.setNamespace(readMetadataRequest.getNamespace());
285
286                     metadata.addFacet(repoProblemFacet);
287
288                     return metadata;
289                 }
290             }
291
292             throw new RepositoryStorageMetadataInvalidException("invalid-pom", msg, e);
293         }
294
295         // Check if the POM is in the correct location
296         boolean correctGroupId = readMetadataRequest.getNamespace().equals(model.getGroupId());
297         boolean correctArtifactId = readMetadataRequest.getProjectId().equals(model.getArtifactId());
298         boolean correctVersion = readMetadataRequest.getProjectVersion().equals(model.getVersion());
299         if (!correctGroupId || !correctArtifactId || !correctVersion) {
300             StringBuilder message = new StringBuilder("Incorrect POM coordinates in '" + file + "':");
301             if (!correctGroupId) {
302                 message.append("\nIncorrect group ID: ").append(model.getGroupId());
303             }
304             if (!correctArtifactId) {
305                 message.append("\nIncorrect artifact ID: ").append(model.getArtifactId());
306             }
307             if (!correctVersion) {
308                 message.append("\nIncorrect version: ").append(model.getVersion());
309             }
310
311             throw new RepositoryStorageMetadataInvalidException("mislocated-pom", message.toString());
312         }
313
314         ProjectVersionMetadata metadata = new ProjectVersionMetadata();
315         metadata.setCiManagement(convertCiManagement(model.getCiManagement()));
316         metadata.setDescription(model.getDescription());
317         metadata.setId(readMetadataRequest.getProjectVersion());
318         metadata.setIssueManagement(convertIssueManagement(model.getIssueManagement()));
319         metadata.setLicenses(convertLicenses(model.getLicenses()));
320         metadata.setMailingLists(convertMailingLists(model.getMailingLists()));
321         metadata.setDependencies(convertDependencies(model.getDependencies()));
322         metadata.setName(model.getName());
323         metadata.setOrganization(convertOrganization(model.getOrganization()));
324         metadata.setScm(convertScm(model.getScm()));
325         metadata.setUrl(model.getUrl());
326         metadata.setProperties(model.getProperties());
327
328         MavenProjectFacet facet = new MavenProjectFacet();
329         facet.setGroupId(model.getGroupId() != null ? model.getGroupId() : model.getParent().getGroupId());
330         facet.setArtifactId(model.getArtifactId());
331         facet.setPackaging(model.getPackaging());
332         if (model.getParent() != null) {
333             MavenProjectParent parent = new MavenProjectParent();
334             parent.setGroupId(model.getParent().getGroupId());
335             parent.setArtifactId(model.getParent().getArtifactId());
336             parent.setVersion(model.getParent().getVersion());
337             facet.setParent(parent);
338         }
339         metadata.addFacet(facet);
340
341         return metadata;
342
343
344     }
345
346     public void setWagonFactory(WagonFactory wagonFactory) {
347         this.wagonFactory = wagonFactory;
348     }
349
350     private List<org.apache.archiva.metadata.model.Dependency> convertDependencies(List<Dependency> dependencies) {
351         List<org.apache.archiva.metadata.model.Dependency> l = new ArrayList<>();
352         for (Dependency dependency : dependencies) {
353             org.apache.archiva.metadata.model.Dependency newDependency =
354                     new org.apache.archiva.metadata.model.Dependency();
355             newDependency.setArtifactId(dependency.getArtifactId());
356             newDependency.setClassifier(dependency.getClassifier());
357             newDependency.setNamespace(dependency.getGroupId());
358             newDependency.setOptional(dependency.isOptional());
359             newDependency.setScope(dependency.getScope());
360             newDependency.setSystemPath(dependency.getSystemPath());
361             newDependency.setType(dependency.getType());
362             newDependency.setVersion(dependency.getVersion());
363             l.add(newDependency);
364         }
365         return l;
366     }
367
368     private org.apache.archiva.metadata.model.Scm convertScm(Scm scm) {
369         org.apache.archiva.metadata.model.Scm newScm = null;
370         if (scm != null) {
371             newScm = new org.apache.archiva.metadata.model.Scm();
372             newScm.setConnection(scm.getConnection());
373             newScm.setDeveloperConnection(scm.getDeveloperConnection());
374             newScm.setUrl(scm.getUrl());
375         }
376         return newScm;
377     }
378
379     private org.apache.archiva.metadata.model.Organization convertOrganization(Organization organization) {
380         org.apache.archiva.metadata.model.Organization org = null;
381         if (organization != null) {
382             org = new org.apache.archiva.metadata.model.Organization();
383             org.setName(organization.getName());
384             org.setUrl(organization.getUrl());
385         }
386         return org;
387     }
388
389     private List<org.apache.archiva.metadata.model.License> convertLicenses(List<License> licenses) {
390         List<org.apache.archiva.metadata.model.License> l = new ArrayList<>();
391         for (License license : licenses) {
392             org.apache.archiva.metadata.model.License newLicense = new org.apache.archiva.metadata.model.License();
393             newLicense.setName(license.getName());
394             newLicense.setUrl(license.getUrl());
395             l.add(newLicense);
396         }
397         return l;
398     }
399
400     private List<org.apache.archiva.metadata.model.MailingList> convertMailingLists(List<MailingList> mailingLists) {
401         List<org.apache.archiva.metadata.model.MailingList> l = new ArrayList<>();
402         for (MailingList mailingList : mailingLists) {
403             org.apache.archiva.metadata.model.MailingList newMailingList =
404                     new org.apache.archiva.metadata.model.MailingList();
405             newMailingList.setName(mailingList.getName());
406             newMailingList.setMainArchiveUrl(mailingList.getArchive());
407             newMailingList.setPostAddress(mailingList.getPost());
408             newMailingList.setSubscribeAddress(mailingList.getSubscribe());
409             newMailingList.setUnsubscribeAddress(mailingList.getUnsubscribe());
410             newMailingList.setOtherArchives(mailingList.getOtherArchives());
411             l.add(newMailingList);
412         }
413         return l;
414     }
415
416     private org.apache.archiva.metadata.model.IssueManagement convertIssueManagement(IssueManagement issueManagement) {
417         org.apache.archiva.metadata.model.IssueManagement im = null;
418         if (issueManagement != null) {
419             im = new org.apache.archiva.metadata.model.IssueManagement();
420             im.setSystem(issueManagement.getSystem());
421             im.setUrl(issueManagement.getUrl());
422         }
423         return im;
424     }
425
426     private org.apache.archiva.metadata.model.CiManagement convertCiManagement(CiManagement ciManagement) {
427         org.apache.archiva.metadata.model.CiManagement ci = null;
428         if (ciManagement != null) {
429             ci = new org.apache.archiva.metadata.model.CiManagement();
430             ci.setSystem(ciManagement.getSystem());
431             ci.setUrl(ciManagement.getUrl());
432         }
433         return ci;
434     }
435
436     @Override
437     public Collection<String> listRootNamespaces(String repoId, Filter<String> filter)
438             throws RepositoryStorageRuntimeException {
439         StorageAsset dir = getRepositoryBasedir(repoId);
440
441         return getSortedFiles(dir, filter);
442     }
443
444     private static Collection<String> getSortedFiles(StorageAsset dir, Filter<String> filter) {
445
446         final Predicate<StorageAsset> dFilter = new DirectoryFilter(filter);
447         return dir.list().stream().filter(f -> f.isContainer())
448                 .filter(dFilter)
449                 .map(path -> path.getName().toString())
450                 .sorted().collect(Collectors.toList());
451
452     }
453
454     private StorageAsset getRepositoryBasedir(String repoId)
455             throws RepositoryStorageRuntimeException {
456         ManagedRepository repositoryConfiguration = repositoryRegistry.getManagedRepository(repoId);
457
458         return repositoryConfiguration.getAsset("");
459     }
460
461     @Override
462     public Collection<String> listNamespaces(String repoId, String namespace, Filter<String> filter)
463             throws RepositoryStorageRuntimeException {
464         StorageAsset dir = pathTranslator.toFile(getRepositoryBasedir(repoId), namespace);
465         if (!(dir.exists()) && !dir.isContainer()) {
466             return Collections.emptyList();
467         }
468         // scan all the directories which are potential namespaces. Any directories known to be projects are excluded
469         Predicate<StorageAsset> dFilter = new DirectoryFilter(filter);
470         return dir.list().stream().filter(dFilter).filter(path -> !isProject(path, filter)).map(path -> path.getName().toString())
471                 .sorted().collect(Collectors.toList());
472     }
473
474     @Override
475     public Collection<String> listProjects(String repoId, String namespace, Filter<String> filter)
476             throws RepositoryStorageRuntimeException {
477         StorageAsset dir = pathTranslator.toFile(getRepositoryBasedir(repoId), namespace);
478         if (!(dir.exists() && dir.isContainer())) {
479             return Collections.emptyList();
480         }
481         // scan all directories in the namespace, and only include those that are known to be projects
482         final Predicate<StorageAsset> dFilter = new DirectoryFilter(filter);
483         return dir.list().stream().filter(dFilter).filter(path -> isProject(path, filter)).map(path -> path.getName().toString())
484                 .sorted().collect(Collectors.toList());
485
486     }
487
488     @Override
489     public Collection<String> listProjectVersions(String repoId, String namespace, String projectId,
490                                                   Filter<String> filter)
491             throws RepositoryStorageRuntimeException {
492         StorageAsset dir = pathTranslator.toFile(getRepositoryBasedir(repoId), namespace, projectId);
493         if (!(dir.exists() && dir.isContainer())) {
494             return Collections.emptyList();
495         }
496
497         // all directories in a project directory can be considered a version
498         return getSortedFiles(dir, filter);
499     }
500
501     @Override
502     public Collection<ArtifactMetadata> readArtifactsMetadata(ReadMetadataRequest readMetadataRequest)
503             throws RepositoryStorageRuntimeException {
504         StorageAsset dir = pathTranslator.toFile(getRepositoryBasedir(readMetadataRequest.getRepositoryId()),
505                 readMetadataRequest.getNamespace(), readMetadataRequest.getProjectId(),
506                 readMetadataRequest.getProjectVersion());
507         if (!(dir.exists() && dir.isContainer())) {
508             return Collections.emptyList();
509         }
510
511         // all files that are not metadata and not a checksum / signature are considered artifacts
512         final Predicate<StorageAsset> dFilter = new ArtifactDirectoryFilter(readMetadataRequest.getFilter());
513         // Returns a map TRUE -> (success values), FALSE -> (Exceptions)
514         Map<Boolean, List<Try<ArtifactMetadata>>> result = dir.list().stream().filter(dFilter).map(path -> {
515                     try {
516                         return Try.success(getArtifactFromFile(readMetadataRequest.getRepositoryId(), readMetadataRequest.getNamespace(),
517                                 readMetadataRequest.getProjectId(), readMetadataRequest.getProjectVersion(),
518                                 path));
519                     } catch (Exception e) {
520                         log.debug("Could not create metadata for {}:  {}", path, e.getMessage(), e);
521                         return Try.<ArtifactMetadata>failure(e);
522                     }
523                 }
524         ).collect(Collectors.groupingBy(Try::isSuccess));
525         if (result.containsKey(Boolean.FALSE) && result.get(Boolean.FALSE).size() > 0 && (!result.containsKey(Boolean.TRUE) || result.get(Boolean.TRUE).size() == 0)) {
526             log.error("Could not get artifact metadata. Directory: {}. Number of errors {}.", dir, result.get(Boolean.FALSE).size());
527             Try<ArtifactMetadata> failure = result.get(Boolean.FALSE).get(0);
528             log.error("Sample exception {}", failure.getError().getMessage(), failure.getError());
529             throw new RepositoryStorageRuntimeException(readMetadataRequest.getRepositoryId(), "Could not retrieve metadata of the files");
530         } else {
531             if (!result.containsKey(Boolean.TRUE) || result.get(Boolean.TRUE) == null) {
532                 return Collections.emptyList();
533             }
534             return result.get(Boolean.TRUE).stream().map(tr -> tr.get()).collect(Collectors.toList());
535         }
536
537     }
538
539     @Override
540     public ArtifactMetadata readArtifactMetadataFromPath(String repoId, String path)
541             throws RepositoryStorageRuntimeException {
542         ArtifactMetadata metadata = pathTranslator.getArtifactForPath(repoId, path);
543
544         try {
545             populateArtifactMetadataFromFile(metadata, getRepositoryBasedir(repoId).resolve(path));
546         } catch (IOException e) {
547             throw new RepositoryStorageRuntimeException(repoId, "Error during metadata retrieval of " + path + " :" + e.getMessage(), e);
548         }
549
550         return metadata;
551     }
552
553     private ArtifactMetadata getArtifactFromFile(String repoId, String namespace, String projectId,
554                                                  String projectVersion, StorageAsset file) throws IOException {
555         ArtifactMetadata metadata =
556                 pathTranslator.getArtifactFromId(repoId, namespace, projectId, projectVersion, file.getName());
557
558         populateArtifactMetadataFromFile(metadata, file);
559
560         return metadata;
561     }
562
563     @Override
564     public void applyServerSideRelocation(ManagedRepository managedRepository, ArtifactReference artifact)
565             throws ProxyDownloadException {
566         if ("pom".equals(artifact.getType())) {
567             return;
568         }
569
570         // Build the artifact POM reference
571         ArtifactReference pomReference = new ArtifactReference();
572         pomReference.setGroupId(artifact.getGroupId());
573         pomReference.setArtifactId(artifact.getArtifactId());
574         pomReference.setVersion(artifact.getVersion());
575         pomReference.setType("pom");
576
577         RepositoryType repositoryType = managedRepository.getType();
578         if (!proxyRegistry.hasHandler(repositoryType)) {
579             throw new ProxyDownloadException("No proxy handler found for repository type " + repositoryType, new HashMap<>());
580         }
581
582         RepositoryProxyHandler proxyHandler = proxyRegistry.getHandler(repositoryType).get(0);
583
584         // Get the artifact POM from proxied repositories if needed
585         proxyHandler.fetchFromProxies(managedRepository, pomReference);
586
587         // Open and read the POM from the managed repo
588         StorageAsset pom = managedRepository.getContent().toFile(pomReference);
589
590         if (!pom.exists()) {
591             return;
592         }
593
594         try {
595             // MavenXpp3Reader leaves the file open, so we need to close it ourselves.
596
597             Model model;
598             try (Reader reader = Channels.newReader(pom.getReadChannel(), Charset.defaultCharset().name())) {
599                 model = MAVEN_XPP_3_READER.read(reader);
600             }
601
602             DistributionManagement dist = model.getDistributionManagement();
603             if (dist != null) {
604                 Relocation relocation = dist.getRelocation();
605                 if (relocation != null) {
606                     // artifact is relocated : update the repositoryPath
607                     if (relocation.getGroupId() != null) {
608                         artifact.setGroupId(relocation.getGroupId());
609                     }
610                     if (relocation.getArtifactId() != null) {
611                         artifact.setArtifactId(relocation.getArtifactId());
612                     }
613                     if (relocation.getVersion() != null) {
614                         artifact.setVersion(relocation.getVersion());
615                     }
616                 }
617             }
618         } catch (IOException e) {
619             // Unable to read POM : ignore.
620         } catch (XmlPullParserException e) {
621             // Invalid POM : ignore
622         }
623     }
624
625
626     @Override
627     public String getFilePath(String requestPath, org.apache.archiva.repository.ManagedRepository managedRepository) {
628         // managedRepository can be null
629         // extract artifact reference from url
630         // groupId:artifactId:version:packaging:classifier
631         //org/apache/archiva/archiva-checksum/1.4-M4-SNAPSHOT/archiva-checksum-1.4-M4-SNAPSHOT.jar
632         String logicalResource = null;
633         String requestPathInfo = StringUtils.defaultString(requestPath);
634
635         //remove prefix ie /repository/blah becomes /blah
636         requestPathInfo = removePrefix(requestPathInfo);
637
638         // Remove prefixing slash as the repository id doesn't contain it;
639         if (requestPathInfo.startsWith("/")) {
640             requestPathInfo = requestPathInfo.substring(1);
641         }
642
643         int slash = requestPathInfo.indexOf('/');
644         if (slash > 0) {
645             logicalResource = requestPathInfo.substring(slash);
646
647             if (logicalResource.endsWith("/..")) {
648                 logicalResource += "/";
649             }
650
651             if (logicalResource != null && logicalResource.startsWith("//")) {
652                 logicalResource = logicalResource.substring(1);
653             }
654
655             if (logicalResource == null) {
656                 logicalResource = "/";
657             }
658         } else {
659             logicalResource = "/";
660         }
661         return logicalResource;
662
663     }
664
665     @Override
666     public String getFilePathWithVersion(final String requestPath, ManagedRepositoryContent managedRepositoryContent)
667             throws RelocationException
668     {
669
670         if (StringUtils.endsWith(requestPath, METADATA_FILENAME)) {
671             return getFilePath(requestPath, managedRepositoryContent.getRepository());
672         }
673
674         String filePath = getFilePath(requestPath, managedRepositoryContent.getRepository());
675
676         ArtifactReference artifactReference = null;
677         try {
678             artifactReference = pathParser.toArtifactReference(filePath);
679         } catch (LayoutException e) {
680             return filePath;
681         }
682
683         if (StringUtils.endsWith(artifactReference.getVersion(), VersionUtil.SNAPSHOT)) {
684             // read maven metadata to get last timestamp
685             StorageAsset metadataDir = managedRepositoryContent.getRepository().getAsset(filePath).getParent();
686             if (!metadataDir.exists()) {
687                 return filePath;
688             }
689             StorageAsset metadataFile = metadataDir.resolve(METADATA_FILENAME);
690             if (!metadataFile.exists()) {
691                 return filePath;
692             }
693             ArchivaRepositoryMetadata archivaRepositoryMetadata = null;
694             try
695             {
696                 archivaRepositoryMetadata = metadataReader.read(metadataFile);
697             }
698             catch ( RepositoryMetadataException e )
699             {
700                 log.error( "Could not read metadata {}", e.getMessage( ), e );
701                 return filePath;
702             }
703             int buildNumber = archivaRepositoryMetadata.getSnapshotVersion().getBuildNumber();
704             String timestamp = archivaRepositoryMetadata.getSnapshotVersion().getTimestamp();
705
706             // MRM-1846
707             if (buildNumber < 1 && timestamp == null) {
708                 return filePath;
709             }
710
711             // org/apache/archiva/archiva-checksum/1.4-M4-SNAPSHOT/archiva-checksum-1.4-M4-SNAPSHOT.jar
712             // ->  archiva-checksum-1.4-M4-20130425.081822-1.jar
713
714             filePath = StringUtils.replace(filePath, //
715                     artifactReference.getArtifactId() //
716                             + "-" + artifactReference.getVersion(), //
717                     artifactReference.getArtifactId() //
718                             + "-" + StringUtils.remove(artifactReference.getVersion(),
719                             "-" + VersionUtil.SNAPSHOT) //
720                             + "-" + timestamp //
721                             + "-" + buildNumber);
722
723             throw new RelocationException("/repository/" + managedRepositoryContent.getRepository().getId() +
724                     (StringUtils.startsWith(filePath, "/") ? "" : "/") + filePath,
725                     RelocationException.RelocationType.TEMPORARY);
726
727         }
728
729         return filePath;
730     }
731
732     //-----------------------------
733     // internal
734     //-----------------------------
735
736     /**
737      * FIXME remove
738      *
739      * @param href
740      * @return
741      */
742     private static String removePrefix(final String href) {
743         String[] parts = StringUtils.split(href, '/');
744         parts = (String[]) ArrayUtils.subarray(parts, 1, parts.length);
745         if (parts == null || parts.length == 0) {
746             return "/";
747         }
748
749         String joinedString = StringUtils.join(parts, '/');
750         if (href.endsWith("/")) {
751             joinedString = joinedString + "/";
752         }
753
754         return joinedString;
755     }
756
757     private static void populateArtifactMetadataFromFile(ArtifactMetadata metadata, StorageAsset file) throws IOException {
758         metadata.setWhenGathered(ZonedDateTime.now(ZoneId.of("GMT")));
759         metadata.setFileLastModified(file.getModificationTime().toEpochMilli());
760         ChecksummedFile checksummedFile = new ChecksummedFile(file.getFilePath());
761         try {
762             metadata.setMd5(checksummedFile.calculateChecksum(ChecksumAlgorithm.MD5));
763         } catch (IOException e) {
764             log.error("Unable to checksum file {}: {},MD5", file, e.getMessage());
765         }
766         try {
767             metadata.setSha1(checksummedFile.calculateChecksum(ChecksumAlgorithm.SHA1));
768         } catch (IOException e) {
769             log.error("Unable to checksum file {}: {},SHA1", file, e.getMessage());
770         }
771         metadata.setSize(file.getSize());
772     }
773
774     private boolean isProject(StorageAsset dir, Filter<String> filter) {
775         // scan directories for a valid project version subdirectory, meaning this must be a project directory
776         final Predicate<StorageAsset> dFilter = new DirectoryFilter(filter);
777         boolean projFound = dir.list().stream().filter(dFilter)
778                 .anyMatch(path -> isProjectVersion(path));
779         if (projFound) {
780             return true;
781         }
782
783         // if a metadata file is present, check if this is the "artifactId" directory, marking it as a project
784         ArchivaRepositoryMetadata metadata = readMetadata(dir);
785         if (metadata != null && dir.getName().toString().equals(metadata.getArtifactId())) {
786             return true;
787         }
788
789         return false;
790     }
791
792     private boolean isProjectVersion(StorageAsset dir) {
793         final String artifactId = dir.getParent().getName();
794         final String projectVersion = dir.getName();
795
796         // check if there is a POM artifact file to ensure it is a version directory
797
798         Predicate<StorageAsset> filter;
799         if (VersionUtil.isSnapshot(projectVersion)) {
800             filter = new PomFilenameFilter(artifactId, projectVersion);
801         } else {
802             final String pomFile = artifactId + "-" + projectVersion + ".pom";
803             filter = new PomFileFilter(pomFile);
804         }
805         if (dir.list().stream().filter(f -> !f.isContainer()).anyMatch(filter)) {
806             return true;
807         }
808         // if a metadata file is present, check if this is the "version" directory, marking it as a project version
809         ArchivaRepositoryMetadata metadata = readMetadata(dir);
810         if (metadata != null && projectVersion.equals(metadata.getVersion())) {
811             return true;
812         }
813
814         return false;
815     }
816
817     private ArchivaRepositoryMetadata readMetadata(StorageAsset directory) {
818         ArchivaRepositoryMetadata metadata = null;
819         StorageAsset metadataFile = directory.resolve(METADATA_FILENAME);
820         if (metadataFile.exists()) {
821             try {
822                 metadata = metadataReader.read(metadataFile);
823             } catch ( RepositoryMetadataException e )
824             {
825                 // Ignore missing or invalid metadata
826             }
827         }
828         return metadata;
829     }
830
831     private static class DirectoryFilter
832             implements Predicate<StorageAsset> {
833         private final Filter<String> filter;
834
835         public DirectoryFilter(Filter<String> filter) {
836             this.filter = filter;
837         }
838
839         @Override
840         public boolean test(StorageAsset dir) {
841             final String name = dir.getName();
842             if (!filter.accept(name)) {
843                 return false;
844             } else if (name.startsWith(".")) {
845                 return false;
846             } else if (!dir.isContainer()) {
847                 return false;
848             }
849             return true;
850         }
851     }
852
853     private static class ArtifactDirectoryFilter
854             implements Predicate<StorageAsset> {
855         private final Filter<String> filter;
856
857         private ArtifactDirectoryFilter(Filter<String> filter) {
858             this.filter = filter;
859         }
860
861         @Override
862         public boolean test(StorageAsset file) {
863             final Set<String> checksumExts = ChecksumAlgorithm.getAllExtensions();
864             final String path = file.getPath();
865             final String name = file.getName();
866             final String extension = StringUtils.substringAfterLast(name, ".").toLowerCase();
867             // TODO compare to logic in maven-repository-layer
868             if (file.isContainer()) {
869                 return false;
870             } else if (!filter.accept(name)) {
871                 return false;
872             } else if (name.startsWith(".") || path.contains("/.") ) {
873                 return false;
874             } else if (checksumExts.contains(extension)) {
875                 return false;
876             } else if (Arrays.binarySearch(IGNORED_FILES, name) >= 0) {
877                 return false;
878             }
879             // some files from remote repositories can have name like maven-metadata-archiva-vm-all-public.xml
880             else if (StringUtils.startsWith(name, METADATA_FILENAME_START) && StringUtils.endsWith(name, ".xml")) {
881                 return false;
882             }
883
884             return true;
885
886         }
887     }
888
889
890     private static final class PomFilenameFilter
891             implements Predicate<StorageAsset> {
892
893         private final String artifactId, projectVersion;
894
895         private PomFilenameFilter(String artifactId, String projectVersion) {
896             this.artifactId = artifactId;
897             this.projectVersion = projectVersion;
898         }
899
900         @Override
901         public boolean test(StorageAsset dir) {
902             final String name = dir.getName();
903             if (name.startsWith(artifactId + "-") && name.endsWith(".pom")) {
904                 String v = name.substring(artifactId.length() + 1, name.length() - 4);
905                 v = VersionUtil.getBaseVersion(v);
906                 if (v.equals(projectVersion)) {
907                     return true;
908                 }
909             }
910             return false;
911         }
912
913     }
914
915     private static class PomFileFilter
916             implements Predicate<StorageAsset> {
917         private final String pomFile;
918
919         private PomFileFilter(String pomFile) {
920             this.pomFile = pomFile;
921         }
922
923         @Override
924         public boolean test(StorageAsset dir) {
925             return pomFile.equals(dir.getName());
926         }
927     }
928
929
930     public PathParser getPathParser() {
931         return pathParser;
932     }
933
934     public void setPathParser(PathParser pathParser) {
935         this.pathParser = pathParser;
936     }
937 }